Origin most absolutely throttles its users. This happens to me every time I use the Origin client for any game file of significant size, but this is my first time posting about it. As a dual ISP user, I've also confirmed this on a separate system, using a different ISP and network setup, and the throttling result persists. I've paused this download via the Origin client pause feature to test and confirm that this absolutely is NOT my network configuration, as every other game service, speed test, movie service, download service, and steaming service I use take full advantage of my connection speed. In my case, this is not a result of a user system issue or incompetent settings. It's currently being throttled to no more than 7 MB/s and goes as low as 500 kb/s back and forth every 10 seconds or so. Around 40% complete, this download began to throttle and the speeds went down in both the Origin client as well as Task Manager. I have a 200 mb/s connection, and the download went about 40% through at close to full speed, showing 22 MB/s (twenty-two megaBYTES per second) in the Origin client, and confirmed in the Network traffic section of Task Manager via Windows. I actually found this thread because I'm currently being the victim of it while downloading an update for a game.

servers most definitely have a throttling issue.

Epic games download slow